Farmers should watch their fields after the first cutting for delayed or lack of green up due to activity of alfalfa weevils (both larvae and adults). Reports from northeastern and northwestern Iowa indicate that this pest is causing problems this year in alfalfa stubble. Heavy populations of weevil adults and surviving populations of larvae can delay new growth by feeding on the stubble and new buds as they break. This feeding may reduce yields and forage quality in the second and possibly third cuttings.
Iowa State University
Pilcher, Carol, "Alfalfa weevil reported on alfalfa regrowth" (2005). Integrated Crop Management News. 1378.
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